Home / 685,528.80-945,963.73-409,832.18

Finding the Fourth Proportional to 685,528.80, 945,963.73 and 409,832.18

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Solution

The fourth proportional to 685,528.80, 945,963.73 and 409,832.18 is: 565,528.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    685,528.80 : 945,963.73 = 409,832.18 : x
  2. Step 2: Convert to fraction form
    685,528.80/945,963.73 = 409,832.18/x
  3. Step 3: Cross multiply
    685,528.80x = 945,963.73 × 409,832.18
  4. Step 4: Simplify right side
    685,528.80x = 387,686,370,887.85
  5. Step 5: Solve for x
    x = 387,686,370,887.85/685,528.80
  6. Step 6: Final answer
    x = 565,528.93

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.